Reagent reservoir



FIG. 1 shows a perspective view of a reagent reservoir;

FIG. 2 shows a top view of a reagent reservoir;

FIG. 3 shows a side view along the length of a reagent reservoir;

FIG. 4 shows a side view along the width of a reagent reservoir; and,

FIG. 5 shows a cut away view of a reagent reservoir, taken along the line 5-5 illustrated in FIG. 2. 

The ornamental design for a reagent reservoir, as shown and described. 